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2. Comfort and design: principles and good practice,2005
3. Mercedes Benz sales brochure “Die Limousinen der E und S-Klasse” Daimler Chrysler AG, Stuttgart, MKP/K6701 0109 00-06/1204).
4. BMW sales brochure 7 series (ref. Prospekt BMW AG München BMW “7er” 411 00 70 2004).
5. Frankfurter Allgemeine Sonntagszeitung BMW Efficient Dynamics, MINI Minimalism (ref. FAZ Nr.11/7/ 11, 15.09.2009).